Boost C++ Libraries

...one of the most highly regarded and expertly designed C++ library projects in the world. — Herb Sutter and Andrei Alexandrescu, C++ Coding Standards

QVM: Quaternions, Vectors, Matrices

boost/qvm/deduce_quat.hpp

Synopsis:

#include <boost/qvm/deduce_quat.hpp>

namespace boost
{
    namespace qvm
    {
        template <class Q>
        struct deduce_quat
        {
            typedef Q type;
        };        
        
        template <class A,class B>
        struct deduce_quat2
        {
            typedef /*unspecified*/ type;
        };
    }
}